
Simplifying Expressions and Solving Equations
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Mathematics
8th Grade
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is a coefficient in an expression?
A coefficient is a numerical factor that multiplies a variable in an expression.
A coefficient is a constant term that does not change in an expression.
A coefficient is a variable that represents a number in an expression.
A coefficient is an operation performed on variables in an expression.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does it mean to solve an equation?
Finding the value(s) of the variable(s) that make the equation true.
Determining the number of solutions an equation has.
Rearranging the equation to isolate the variable.
Graphing the equation to find its intersection points.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the distributive property?
The distributive property states that a(b + c) = ab + ac, meaning you can distribute a factor across a sum.
The distributive property states that a + (b + c) = (a + b) + c, meaning you can group numbers in any way.
The distributive property states that a(b - c) = ab - ac, meaning you can distribute a factor across a difference.
The distributive property states that a(b + c) = a + b + c, meaning you can add numbers directly without distribution.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does it mean to isolate a variable?
To combine like terms in an equation.
To manipulate the equation so that the variable is on one side by itself.
To substitute a number for the variable in an equation.
To eliminate the variable from the equation.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How would you express 'the difference between a number and 7'?
(x + 7)
(x - 7)
(7 - x)
(x * 7)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you check if your solution to an equation is correct?
By substituting the value back into the original equation to see if both sides are equal.
By multiplying both sides of the equation by the same number.
By adding the same number to both sides of the equation.
By graphing the equation and checking the intersection points.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Define 'simplifying an expression'.
To reduce it to its simplest form by combining like terms and eliminating unnecessary parentheses.
To make an expression longer and more complex.
To change the variables in an expression to different letters.
To evaluate the expression to find its numerical value.
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